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Individual Calculations October 2018 |
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| Tutush, Dusan Total change: 2.20 | |   |
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| 2018 Illinois Open State Championship | Downers Grove, Illinois | USA | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1782 | 1890 | 2.00 | 3 | 0.11 | 20 | 2.20 | |
|  Xu, Arthur | c | | 2011 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | |  Lin, Aaron | | | 1590 | USA | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Zhang, Richard | | | 1744 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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